Turbine driven by water or steam



March 25 192%. I GATZ TURBINEDRIVBN BY WATER OR STEAM Patented Mar. 25, 1924.

OTTO GATZI, 0F ZURICH, SWITZERLAND.

TURBINE DRIVEN BY HATER 0R STEAM.

Application filed January 16, 1922.

To all whom it may concern:

Be it known that I, OTTO Gli'rzr, a citizen of the Swiss Confederation, residing at Zurich, Switzerland, have invented certain new and useful Improvements in Turbines Driven by Water or Steam, of which the following is a specification.

The turbines driven by water or steam of known construction present the inconvenience that comparatively much water or steam is lost. This loss is comparatively great, specially with water turbines.

This invention has for its object to 1mprove the construction of a turbine to be driven by water or steam in such a manner that the above mentioned inconvenience is avoided. This result is obtained by constructing the turbine with a cylinder adapted to revolve around its own axis and having, upon its outer surface, parallel ribs extending longitudinally and tangentially ar ranged supply nozzles terminating behind said ribs, said supply nozzles having an outlet orifice of a length which corresponds with the length of the ribs.

In order that th invention may be clearly understood, I shall proceed to describe the same with reference to the form of construction shown by way of example on the accompanying drawing, wherein Fig. 1 shows the improved turbine in side elevation.

Fig. 2 is a plan view of the same.

Fig. 3 is a section on line AA of Fig. 1.

Referring to the drawing: a is a cylinder which is revolubly mounted in uprights 0, c by means of journals 6. The cylinder a has longitudinal ribs d upon its outer surface which are spaced the one from the other for a distance of 1 centimeter and which are about 1 centimeter high. I The ribs (5 are parallel with one another and they extend approximately over the entire length of the cylinder. The cylinder a is enclosed in a i. hollow cylindrical envelope 6 having a lengthwise exhaust slot 6 on one side and from the inner surface of which feeding pipes f extend inwardly. These feeding pipes f are tangentially arranged with re gard to th ribs 61 and they are of the same width as said ribs. The envelope e is connected by a semicircular pipe 9 with the main conduit h. 21 is the throttle valve for regulating the quantity of steam or water to be admitted to the turbine. Upon said envelope 6 three valve boxes 74 are further Serial No. 529,622.

arranged in each of which a valve piston m is mounted (Fig. 3) which is controlled by a spiral spring Z. In the valve boxes 7:: out

lets a are provided which are brought in communication with the water or steam jacket in the envelope e if the pressure in said jacket exceeds the normal pressure so that the pistons m are pushed back.

If for instance six feeding pipes f are arranged, three of said feeding pipes could have a direction opposite to that of the other three pipes, each set of feeding pipes being connected with a separate jacket. In this manner it would be possible to let the water or steam act upon the ribs in the direction in which the clock hand turns or in opposite direction, the cylinder a being revolved accordingly.

In the cylinder at a hollow axially directed space could be provided which communicates with the intervals between the ribs so that the steam or the water can flow intothis hollow space from which it is let out in any convenient manner.

If the apparatus is to be used as steam turbine, purging devices for the water from condensation will be preferably inserted in each branch of the supply pipe 9 and in the steam jacket e.

The apparatus can be used as a water turbine or as a steam turbine and it is of great efiiciency. The space between the feeding pipes could be filled in with any convenient material.

I claim A turbine comprising a rotor, a casing surrounding the same and spaced radially therefrom, said casing having a lengthwise exhaust slot and being double-walled to form an annular chamber interrupted only by the walls of the exhaust slot, nozzles extending inwardly from the casing tangentially of the rotor for directing fluid pressur thereon, a branched inlet leading into the annular chamber of the casing immediately below the exhaust slot, and a series of pressure-control valves arranged above the slot to open under excessive pressure in the annular casing chamber.

In testimony whereof I afiix my signature in presence of two witnesses.

Giirzr OTTO. 

